Liquid end

The series are designed adopting hydraulically actuated double diaphragms with intermediate safety chamber.

The main solutions adopted for the liquid end design are the following:

DELTA geometry of the Liquid End design (Patent pending) that allows:

• minimized overall pump dimensions and weight
• high stiffness of the liquid end with very limited deformation under severe loads
• reduced clearance volumes with consequent high value of the volumetric efficiency
• reduced volume of oil requested to actuate the diaphragms since the plunger sealing does not require to be oil flooded
• standard execution with high strength modified PTFE double diaphragm, sandwich type
• monitoring of diaphragm failure
• proprietary diaphragm shape and assembling system design that avoids stress concentrations
• incorporated relief valve, easily accessible for routine maintenance, to prevent any damage to the pump in case of accidental overpressure;
• internal recirculation valve, to restore the driving fluid if the relief valve opens, with active push rod for diaphragm displacement control under high pressure suction conditions